Much has been said about Hyper Light, therefore not much else is need.
Alex Preston has done an incredible job of recreating a 2d 8bit world, full of beauty. The game will challenge you, and force you to replay specific area's over and over. When you defeat your new and stronger enemy however the satisfaction is worth every single repeat play.
Should you buy it: Yes
P.S Make sure you have a xbox controller if you play it on your Mac. Otherwise get it on your console